in still air under direct sunlight, tiny dust particles can often be ovserved to float. Explain how this happens. How could you test your answer?
2007-02-24 05:09:11 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Brownian Motion, used by Albert Einstein to prove the existance of atoms.
2007-02-24 05:35:09 · answer #1 · answered by stargazergurl22 4 · 0⤊ 0⤋
Convection currents that develop as a result of the heating of the air by the sunlight. Close the curtains or the shade and watch the dust particles settle
2007-02-24 05:19:20 · answer #2 · answered by thom1102 2 · 0⤊ 0⤋
This phenomenon is called Brownian movement. Brownian movement is the random movement of particles of a substance in a fluid(liquid or gas). It was discovered by Robert Brown.
This happens mainly due to diffusion.
2007-02-24 05:14:51 · answer #3 · answered by India's cool! 2 · 0⤊ 0⤋
it is because of the fact they're tiny airborne dirt and dirt debris. they're easy sufficient to be carried alongside by skill of the minute currents of air on your room. sort of a similar way a feather would be carried alongside a breeze.
2016-10-16 09:45:36 · answer #4 · answered by ? 4 · 0⤊ 0⤋